Here's Looking At You, Kid, MGS Sees Mars Odyssey and Mars Express |
Here's Looking At You, Kid, MGS Sees Mars Odyssey and Mars Express |
May 19 2005, 07:39 PM
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#1
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Senior Member Group: Members Posts: 1281 Joined: 18-December 04 From: San Diego, CA Member No.: 124 |
-------------------- Lyford Rome
"Zis is not nuts, zis is super-nuts!" Mathematician Richard Courant on viewing an Orion test |
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May 19 2005, 07:41 PM
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#2
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
And to think - I'm giving a talk that includes MGS, Odyssey, and MEX in about 42 hrs time
GREAT timing Doug |
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May 19 2005, 08:43 PM
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#3
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Member Group: Members Posts: 345 Joined: 2-May 05 Member No.: 372 |
That's awesome!
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May 19 2005, 09:18 PM
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#4
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
I wonder whether MGS could image the derelicts orbiting Mars - even as streaks - despite their rather uncertain positions? Apart from the mere interest value in finding Mariner 9, say, it'd also sort out the issue of whether or not one of the MER vehicles saw either a defunct spacecraft or a meteor in the sky last year (I forget which one of the Rovers it was, but have a feeling it was Opportunity). It'd be nice to (1) find the old birds (2) backtrack their orbits (3) rule them in (or out) and get a final answer...
-------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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May 20 2005, 03:13 AM
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#5
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Senior Member Group: Moderator Posts: 2262 Joined: 9-February 04 From: Melbourne - Oz Member No.: 16 |
Wow
I never thorght I'd see anything like that! James -------------------- |
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May 20 2005, 11:50 AM
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#6
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Member Group: Members Posts: 562 Joined: 29-March 05 Member No.: 221 |
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May 20 2005, 10:41 PM
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#7
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
Of course, the *first* spacecraft to image another spacecraft in Mars orbit was, er, Mars Express...
...and what a nice photo it took of poor ol' Beagle 2 as it drifted away! Not wishing to detract from MGS, but the claim to have been 'first' is simply wrong! Now, 'best', 'most technically stunning', 'cleverest' and so forth - no contest! But, guys, you came second... -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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May 20 2005, 10:56 PM
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#8
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Member Group: Members Posts: 470 Joined: 24-March 04 From: Finland Member No.: 63 |
QUOTE (Bob Shaw @ May 20 2005, 10:41 PM) Of course, the *first* spacecraft to image another spacecraft in Mars orbit was, er, Mars Express... ...and what a nice photo it took of poor ol' Beagle 2 as it drifted away! Since we are picking nits, I might point out that Beagle 2 never entered orbit... -------------------- Antti Kuosmanen
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May 20 2005, 10:59 PM
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#9
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
QUOTE (Bob Shaw @ May 20 2005, 10:41 PM) Of course, the *first* spacecraft to image another spacecraft in Mars orbit was, er, Mars Express... ...and what a nice photo it took of poor ol' Beagle 2 as it drifted away! Not wishing to detract from MGS, but the claim to have been 'first' is simply wrong! Now, 'best', 'most technically stunning', 'cleverest' and so forth - no contest! But, guys, you came second... Not to split hairs or anything, but was Beagle technically in orbit? If it was drifting away on a path to entry, then it would have been moving at something less than an orbital velocity. -------------------- If Occam had heard my theory, things would be very different now.
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May 20 2005, 11:03 PM
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#10
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
No, you're still in orbit, it's just that your orbit intersects atmosphere (or even the surface of the planet)!
-------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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May 20 2005, 11:05 PM
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#11
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
Nope - Beagle 2 was certainly in orbit of Mars! It was released from Mars Express well after initial orbit was established...
-------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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May 20 2005, 11:18 PM
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#12
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
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May 20 2005, 11:27 PM
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#13
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Member Group: Members Posts: 470 Joined: 24-March 04 From: Finland Member No.: 63 |
Come to think of this, the Viking craft did enter orbit as an orbiter/lander combination. The landers were only released after many orbits of scouting for landing positions. The orbiters might well have imaged the landers back then.
-------------------- Antti Kuosmanen
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May 20 2005, 11:30 PM
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#14
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Viking 1 & 2, and Russias Mars 2, 3 and 5 all entered orbit - and then deployed landers. I dont think any of them imaged the landers after seperation however
doug |
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May 20 2005, 11:36 PM
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#15
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
Doug:
I thought Mars Express was in an initial orbit when it released Beagle 2? I'll have a search... And I'm not so sure about the Soviet vehicles actually entering orbit WITH their landers - I seem to remember that one of the problems they had was that the were unable to loiter in orbit with their landers, but instead released them before entering orbit, which would mean that the landers were in a heliocentric orbit which happened to cross the surface of Mars (via the atmosphere). In any case, they were 'clockwork' vehicles and couldn't respond to changes in the same way that the US vehicles could... -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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